海洋科学2017，Vol.41Issue(5)：27-33,7.DOI:10.11759//hykx20161011004
Cd2+和Pb2+单一与复合污染对脊尾白虾的急性毒性效应研究
Single and joint acute toxic effects of cadmium and lead on Palaemon carincauda
摘要
Abstract
The presence of heavy metals in the coastal environment has been of great concern due to their non-biodegradable nature. This study aims to investigate single and joint acute toxic effects of Cd2+ and Pb2+ on Palaemon carincauda and provides the basis for the water quality management of aquaculture. The effects of dif-ferent concentrations of Cd2+ and Pb2+ on P. carincauda within 96 h were investigated by using the semistatic acute toxicity test. The results showed the following: (1) The 24, 48, 72 and 96 h median lethal concentrations (LC50) of Cd2+ on P. carincauda were 138.699, 33.110, 9.719 and 3.650 mg/L, respectively, and the 48, 72 and 96 h LC50 of Pb2+ were 254.541, 62.750 and 29.074 mg/L, respectively. The 96 h safety concentrations (SC) of Cd2+ and Pb2+ on P. carincauda were predicted to be 0.365 mg/L and 2.907 mg/L, respectively; (2) At a concentration ratio of 1︰1, the additive index values for Cd2+ and Pb2+ were 0.155, 0.068, and 0.258 during the experiment time of 48, 72 and 96 h, respectively. These results indicated that Cd2+ presented higher toxicity toward the shrimps than Pb2+. Joint toxic effects of Cd2+ and Pb2+ demonstrated synergistic effects during the experimental period.关键词
Cd2+/Pb2+/急性毒性/复合毒性/脊尾白虾(Palaemoncarincauda)Key words
Cd2+/Pb2+/acute toxicity/joint toxicity/Palaemon carincauda分类
农业科技引用本文复制引用
谢嘉,吴惠丰,丛明,赵建民,滕佳,刘永亮,杨顶珑,曹瑞文,陈丽竹,王清,李斐,吉成龙..Cd2+和Pb2+单一与复合污染对脊尾白虾的急性毒性效应研究[J].海洋科学,2017,41(5):27-33,7.基金项目
中国科学院重点部署项目(KZZD-EW-14) （KZZD-EW-14）
中国科学院海洋生态与环境科学重点实验室开放基金(KLMEES201301) Key Research Program of the Chinese Academy of Sciences, No. KZZD-EW-14 （KLMEES201301）
Open Fund of Key Laboratory of Marine Ecology and Environmental Science, Institute of Oceanology, Chinese Academy of Sciences, No. KLMEES201301 （）
